Wisniewski, Seymour and Mitchell still out; C.J. returns to practice

Left guard Stefen Wisniewski, defensive tackle Richard Seymour, safety Mike Mitchell and wide receivers Chaz Schilens and Louis Murphy were among those who weren’t at practice Tuesday.
Wisniewski was in uniform but not taking part in drills. He has a wrap on his right knee, though it’s uncertain what the nature of his injury is or if coach Hue Jackson just opted to give him a day off.
Seymour was out of practice Friday in Napa. but he wasn’t injured, according to Jackson. Seymour also sat out the Raiders game against the New Orleans Saints on Sunday night with what Raiders play-by-play announcer Greg Papa described as a hamstring injury.
More later, when we have access to Jackson after practice.
On the bright side, cornerback Chris Johnson and defensive tackle John Henderson returned to practice after lenghty absences. Johnson was doing everything asked of the other defensive backs before media access ended at 11:45 a.m. He underwent surgery for an undisclosed injury about 10 days ago.
Henderson has been bothered by a sore foot for part of training camp. He is being counted upon to be a key part of Oakland’s defensive line rotation.
Other players who weren’t at practice: receiver Shawn Bayes, tight end Kevin Boss, fullback James McCluskey, safety Zac Etheridge, cornerback Jeremy Ware, linebackers Sam Williams, Chris Francis and Bruce Davis II, and guard Roy Schuening.
Quarterback Terrelle Pryor was in uniform and taking part in the quarterback drills for the second time since he joined the Raiders on Friday. Jackson said it’s possible that Pryor will play against the Seattle Seahawks on Friday night.